摘要: I have been asked to speak today about some cryptographic work was engaged in at Bletchley Park, during the Forties. concerned mainly with a German machine-cipher known as “FISH”. The network using this system grew many links and each link given name of kind fish. Thus first be intercepted called “Tunny” recall such names “Bream”, “Herring” “Mackerel” for later links.
cryptocellar.org
springer.com参考文章(1)
Edward J. Drea, F. H. Hinsley, Alan Stripp, Code Breakers: The Inside Story of Bletchley Park. The Journal of Military History. ,vol. 58, pp. 164- ,(1994) , 10.2307/2944207